KR100532164B1 - Method of Manufacturing Artificial Marble Having 3-dimension Bubbled Pattern - Google Patents
Method of Manufacturing Artificial Marble Having 3-dimension Bubbled Pattern Download PDFInfo
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- KR100532164B1 KR100532164B1 KR10-2003-0096403A KR20030096403A KR100532164B1 KR 100532164 B1 KR100532164 B1 KR 100532164B1 KR 20030096403 A KR20030096403 A KR 20030096403A KR 100532164 B1 KR100532164 B1 KR 100532164B1
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- artificial marble
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- 239000002928 artificial marble Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000006188 syrup Substances 0.000 claims description 11
- 235000020357 syrup Nutrition 0.000 claims description 11
- 239000000178 monomer Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 5
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 5
- 239000004579 marble Substances 0.000 claims description 5
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 238000009826 distribution Methods 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003505 polymerization initiator Substances 0.000 description 4
- -1 acryl Chemical group 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- GDOBGDUGIFUCJV-UHFFFAOYSA-N 2,2-dimethylbutane;2-methylprop-2-enoic acid Chemical compound CCC(C)(C)C.CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O GDOBGDUGIFUCJV-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- AKUNSTOMHUXJOZ-UHFFFAOYSA-N 1-hydroperoxybutane Chemical compound CCCCOO AKUNSTOMHUXJOZ-UHFFFAOYSA-N 0.000 description 1
- NEBBLNDVSSWJLL-UHFFFAOYSA-N 2,3-bis(2-methylprop-2-enoyloxy)propyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(OC(=O)C(C)=C)COC(=O)C(C)=C NEBBLNDVSSWJLL-UHFFFAOYSA-N 0.000 description 1
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- JJBFVQSGPLGDNX-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)propyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)COC(=O)C(C)=C JJBFVQSGPLGDNX-UHFFFAOYSA-N 0.000 description 1
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 description 1
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004609 Impact Modifier Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QUZSUMLPWDHKCJ-UHFFFAOYSA-N bisphenol A dimethacrylate Chemical compound C1=CC(OC(=O)C(=C)C)=CC=C1C(C)(C)C1=CC=C(OC(=O)C(C)=C)C=C1 QUZSUMLPWDHKCJ-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- YQHLDYVWEZKEOX-UHFFFAOYSA-N cumene hydroperoxide Chemical compound OOC(C)(C)C1=CC=CC=C1 YQHLDYVWEZKEOX-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/16—Slip casting, i.e. applying a slip or slurry on a perforated or porous or absorbent surface with the liquid being drained away
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/36—Feeding the material on to the mould, core or other substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/52—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/702—Imitation articles, e.g. statues, mannequins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명의 3차원 기포패턴을 갖는 인조 대리석의 제조방법은 인조대리석의 베이스를 형성하는 슬러리를 제조하고; 상기 슬러리를 공기 주입구와 공기 혼합기가 장착된 이송관에 투입하고; 상기 슬러리에 공기를 주입한 후, 일정한 크기의 기포가 형성하도록 혼합하고; 그리고 상기 기포가 형성된 슬러리를 성형 셀에 뿌려 경화시키는 단계로 이루어진다. 본 발명에서 제조된 인조 대리석은 기포 크기가 고르게 분포된 3차원 기포 패턴을 갖는다. Method for producing artificial marble having a three-dimensional bubble pattern of the present invention is to prepare a slurry to form a base of artificial marble; Injecting the slurry into a feed tube equipped with an air inlet and an air mixer; After injecting air into the slurry, mixing to form bubbles of a constant size; And it is made by spraying the slurry in which the bubble is formed in a molding cell to cure. The artificial marble produced in the present invention has a three-dimensional bubble pattern with evenly distributed bubble sizes.
Description
발명의 분야Field of invention
본 발명은 3차원 기포 패턴을 갖는 인조 대리석의 제조 방법에 관한 것이다. 보다 구체적으로, 본 발명은 인조 대리석의 슬러리를 제조하여 성형 셀에 공급하는 과정에서 공기를 주입하고 일정한 혼합속도로 혼합함으로써, 3차원 기포 패턴을 갖는 인조 대리석의 제조방법에 관한 것이다.The present invention relates to a method for producing artificial marble having a three-dimensional bubble pattern. More specifically, the present invention relates to a method of manufacturing artificial marble having a three-dimensional bubble pattern by injecting air and mixing at a constant mixing rate in the process of preparing a slurry of artificial marble and supplying it to a forming cell.
발명의 배경Background of the Invention
최근 건축 내장재로 많이 사용되고 있는 인조대리석은 그 사용되는 베이스 레진(Base resin)에 의해 크게 아크릴계와 불포화 폴리에스터계의 두 가지 종류로 구분된다. 이중 아크릴계 인조 대리석은 수지 자체의 은은한 투명성과 고급스러운 질감 및 우수한 내후성 등의 장점을 가져 씽크대 상판, 세면 화장대의 상판, 은행 및 일반 매장의 접수대 등 각종 카운터의 상판, 상품 매장의 내벽재, 욕조, 싱크 보울(sink bowl) 및 각종 인테리어 조형물의 소재로서 다양한 용도로 사용되고 있다. 그러나 일반적으로 알려진 공법으로 제조된 아크릴계 인조대리석은 이러한 장점에도 불구하고 천연대리석에 비해 다양한 무늬를 모두 표현하지는 못하는 문제점이 있다. Artificial marble, which is widely used as a building interior material, is classified into two kinds of acrylic and unsaturated polyester based on the base resin used. The acrylic acrylic marble has the advantages of soft transparency, luxurious texture and excellent weather resistance of the resin itself, and it has various counter tops such as sink tops, vanity tops, reception desks of banks and general stores, wall materials of product stores, bathtubs, It is used for various purposes as a sink bowl and various interior moldings. However, in general, acrylic artificial marble manufactured by a known method has a problem in that it does not express all the various patterns in comparison with natural marble.
아크릴계 인조대리석 제조방법은 일반적으로 메틸메타크릴레이트(Methyl methacrylate)와 같은 모노머와 폴리메틸메타크릴레이트(Polymethyl methacrylate)를 혼합한 시럽(syrub)에 충진제, 안료 및 경화제 등과 기타 첨가제(개시제, 이형제, 분산제 등)를 혼합한 후 금형에 주입하여 경화시켜 제조된다. In general, the acrylic artificial marble manufacturing method is a syrup mixed with a monomer such as methyl methacrylate and polymethyl methacrylate, and a filler, a pigment, a curing agent, and other additives (initiator, release agent, It is prepared by mixing a dispersant) and then injecting into a mold to cure.
대한민국공개특허 제1999-39632호에서는 열경화성 수지, 무기 충전재, 직경 3∼20 mm 의 천연석 파쇄물, 저수축제로 이루어진 인조 대리석 조성물을 금형 내에 투입하여 가압 성형하여 인조대리석을 제조하는 방법을 개시하고 있다. Korean Patent Laid-Open Publication No. 1999-39632 discloses a method of manufacturing artificial marble by press-molding an artificial marble composition consisting of a thermosetting resin, an inorganic filler, a natural stone crushed material having a diameter of 3 to 20 mm, and a low shrinkage agent into a mold.
그러나, 이러한 종래의 방법으로 제조된 인조 대리석은 무공질로써, 제품의 보여지는 표면이 2차원적인 패턴밖에 표현할 수 없어 입체감이 부족하다는 단점이 있다. However, the artificial marble produced by such a conventional method is a non-porous, there is a disadvantage that the surface of the product can only express a two-dimensional pattern, there is a lack of three-dimensional feeling.
따라서, 본 발명자들은 상기 단점을 극복하기 위하여, 인조 대리석의 슬러리를 제조하여 성형 셀에 공급하는 과정에서 공기를 주입하고 일정한 혼합속도로 혼합함으로써, 3차원 기포 패턴을 갖는 인조 대리석의 제조방법을 개발하기에 이른 것이다. Therefore, in order to overcome the above disadvantages, the present inventors have developed a method of manufacturing artificial marble having a three-dimensional bubble pattern by injecting air and mixing at a constant mixing rate in the process of preparing a slurry of artificial marble and supplying it to a molding cell. It was early.
본 발명의 목적은 3차원적인 기포 패턴을 갖는 인조대리석의 제조방법을 제공하기 위한 것이다.An object of the present invention is to provide a method of manufacturing artificial marble having a three-dimensional bubble pattern.
본 발명의 다른 목적은 크기가 일정한 분포를 갖는 3차원적인 패턴을 갖는 인조대리석의 제조방법을 제공하기 위한 것이다.Another object of the present invention is to provide a method of manufacturing artificial marble having a three-dimensional pattern having a constant size distribution.
본 발명의 상기 및 기타 목적들은 하기 설명되는 본 발명에 의하여 모두 달성될 수 있다. The above and other objects of the present invention can be achieved by the present invention described below.
본 발명의 3차원 기포 패턴을 갖는 인조대리석의 제조방법은 인조대리석의 베이스를 형성하는 슬러리를 제조하고; 상기 슬러리를 공기 주입구와 공기 혼합기가 장착된 이송관에 투입하고; 상기 슬러리에 공기를 주입한 후, 일정한 크기의 기포가 형성하도록 혼합하고; 그리고 상기 기포가 형성된 슬러리를 성형 셀에 뿌려 경화시키는 단계로 이루어진다. 이하 첨부된 도면을 참고로 본 발명의 내용을 하기에 상세히 설명한다. Method for producing artificial marble having a three-dimensional bubble pattern of the present invention to prepare a slurry to form a base of artificial marble; Injecting the slurry into a feed tube equipped with an air inlet and an air mixer; After injecting air into the slurry, mixing to form bubbles of a constant size; And it is made by spraying the slurry in which the bubble is formed in a molding cell to cure. Hereinafter, with reference to the accompanying drawings will be described in detail the contents of the present invention.
도 1은 본 발명에 따른 인조 대리석의 제조 공정을 개략적으로 나타낸 공정도이다. 인조 대리석 슬러리는 도 1과 같이 성형 셀에 뿌리기 위한 이송관의 중간에서 주입구를 통한 공기의 주입 후 기포의 크기가 일정한 분포를 갖도록 혼합된다.1 is a process diagram schematically showing a manufacturing process of artificial marble according to the present invention. Artificial marble slurry is mixed so that the size of the bubble after the injection of air through the inlet in the middle of the transfer pipe for spraying the forming cell as shown in FIG.
본 발명에 있어서, 상기 인조대리석의 베이스를 형성하는 슬러리는 아크릴 수지 시럽, 마블 칩, 무기 충전물, 아크릴계 다 관능성 단량체, 중합 개시제를 혼합하여 제조된다. In the present invention, the slurry forming the base of the artificial marble is prepared by mixing an acrylic resin syrup, marble chips, inorganic fillers, acrylic polyfunctional monomers, and a polymerization initiator.
상기 아크릴 수지는 라디칼 중합성 모노머로서 그 예로는 메타 아크릴산, 메틸 메타 아크릴레이트, 에틸 메타 아크릴레이트, 이소 프로필 메타 아크릴레이트, n-부틸 메타 아크릴레이트, 2-에틸 헥실 메타 아클릴레이트와 같은 단량체에 이들의 중합체인 폴리아크릴레이트가 용해되어 있는 시럽이다.The acrylic resin is a radical polymerizable monomer, and examples thereof include monomers such as methacrylic acid, methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate and 2-ethyl hexyl methacrylate. It is a syrup in which the polyacrylate which is these polymers melt | dissolves.
본 발명의 수지 시럽은 아크릴 단량체 함량 65 중량% 이상 아크릴 중합물 함량 35 중량% 이하로 하는 것이 바람직하다.It is preferable that the resin syrup of this invention shall be 65 weight% or more of acrylic monomer content, and 35 weight% or less of acrylic polymer content.
본 발명에서 가교제로 사용하는 다 관능성 메타 아크릴레이트의 예로는 에틸렌 글리콜 디 메타 아크릴레이트, 프로필렌 글리콜 디 메타 아크릴레이트, 글리세롤 트리 메타 아크릴레이트, 트리메틸 프로판 트리 메타 아크릴레이트 및 비스페놀 A 디 메타 아크릴레이트를 들 수 있다. 상기 다 관능성 단량체는 아크릴 수지 시럽 100 중량부를 기준으로 0∼30 중량부로 첨가한다. 더욱 바람직하기로는 2∼15중량부가 바람직하다.Examples of the multifunctional methacrylate used as the crosslinking agent in the present invention include ethylene glycol dimethacrylate, propylene glycol dimethacrylate, glycerol trimethacrylate, trimethyl propane trimethacrylate and bisphenol A dimethacrylate. Can be mentioned. The polyfunctional monomer is added in an amount of 0 to 30 parts by weight based on 100 parts by weight of the acrylic resin syrup. More preferably, 2-15 weight part is preferable.
본 발명의 인조 대리석 슬러리에 사용될 수 있는 무기 충전물로는 입자크기가 1∼80 ㎛인 탄산칼슘, 수산화 알루미늄, 실리카, 알루미나, 수산화 마그네슘과 같이 당 분야에서 통상적으로 사용되는 무기 분말중 어느 것도 사용 가능하다. 상기 무기 분말 중 특히, 수산화 알루미늄은 투명하고 미려한 대리석 형상의 외관을 갖는 인조대리석을 제조 할 수 있다는 점에서 바람직하다. 무기 충전물의 혼합비는 아크릴 수시 시럽 100 중량부를 기준으로 100∼300 중량부, 더욱 바람직하기로는 120∼200 중량부가 바람직하다. Inorganic fillers that can be used in the artificial marble slurry of the present invention may be any of inorganic powders commonly used in the art, such as calcium carbonate, aluminum hydroxide, silica, alumina, magnesium hydroxide having a particle size of 1 to 80 μm. Do. Among the inorganic powders, aluminum hydroxide is particularly preferable in that it can produce artificial marble having a transparent and beautiful marble appearance. The mixing ratio of the inorganic filler is preferably 100 to 300 parts by weight, more preferably 120 to 200 parts by weight based on 100 parts by weight of the acryl occasional syrup.
본 발명의 혼합물을 구성하는 마블 칩은 베이스와 동일한 조성으로 제조된 인조 대리석 제품을 햄머밀 타입의 파쇄기 또는 커터 타입의 파쇄기를 이용하여 파쇄한 후 다양한 크기의 채를 이용하여 0.1∼6 mm크기로 분류한 것이다. 상기 마블 칩의 혼합비는 아크릴 수시 시럽 100 중량부를 기준으로 0∼100 중량부 더욱 바람직하기로는 0∼60 중량부가 바람직하다.Marble chips constituting the mixture of the present invention is crushed artificial marble products made of the same composition as the base using a hammer mill type crusher or cutter type crusher and then 0.1 to 6 mm in size using various sizes It is classified. The mixing ratio of the marble chip is preferably 0 to 100 parts by weight, more preferably 0 to 60 parts by weight, based on 100 parts by weight of the acryl syrup.
본 발명에 있어서 중합 개시제로는 벤조일 퍼옥사이드, 라우로일 퍼옥사이드, 부틸 하이드로 퍼옥사이드, 큐밀 하이드로 퍼옥사이드등의 과산화물 또는 아조비스이소부틸로니트릴과 같은 아조 화합물을 사용한다. 상기 중합 개시제 외에도 중합 속도를 빠르게 하는 유기 금속염이나, 유기아민과 같은 가속제를 사용할 수 있다. 본 발명에 있어서, 중합개시제의 함량은 아크릴 수지 시럽 100 중량부 기준으로 0.1∼10 중량부가 바람직하다. In the present invention, as the polymerization initiator, a peroxide such as benzoyl peroxide, lauroyl peroxide, butyl hydroperoxide, cumyl hydroperoxide, or an azo compound such as azobisisobutylonitrile is used. In addition to the polymerization initiator, an organic metal salt for accelerating the polymerization rate or an accelerator such as an organic amine can be used. In the present invention, the content of the polymerization initiator is preferably 0.1 to 10 parts by weight based on 100 parts by weight of the acrylic resin syrup.
본 발명의 인조 대리석 슬러리에는 상기 구성성분외에도 필요에 따라 안료, 염료, 광안정제, 열안정제, 충격보강제, 가소제 등이 첨가될 수 있다. In addition to the above components, pigments, dyes, light stabilizers, heat stabilizers, impact modifiers, plasticizers, and the like may be added to the artificial marble slurry of the present invention as necessary.
상기에서 혼합한 베이스를 형성하는 슬러리를 이송 펌프를 통해 이송관으로 투입한다. The slurry forming the mixed base is introduced into a transfer pipe through a transfer pump.
본 발명에서 상기 이송관은 종래의 이송관과 달리, 공기 주입구와 공기 혼합기가 장착되어 있다. In the present invention, the transfer pipe, unlike the conventional transfer pipe, is equipped with an air inlet and an air mixer.
상기 공기 주입구는 도 1에 도시된 바와 같이 혼합기 내벽에서 일정 길이 이상 내부로 돌출되어 장착이 되어 있다. 돌출된 길이는 공기 혼합기의 작동에 지장을 주지 않을 수 있는 범위에서 최대한 중앙까지 돌출되어 있는 것이 좋다. 공기 주입구가 돌출되어 있지 않으면, 주입된 공기가 공기 혼합기 내벽을 따라 이송되는 이유로 슬러리와 충분한 혼합이 이루어지지 않게 된다. 또한, 슬러리의 역류에 의한 주입구의 막힘을 방지 하기 위하여 주입구 말단에 캡이 장착되어 있어 공기가 주입되는 방향으로만 열릴 수 있게 하는 것이 바람직하다. As shown in FIG. 1, the air inlet is mounted to protrude from the inner wall of the mixer by a predetermined length or more. The protruding length should be protruded as far as possible to the center so as not to interfere with the operation of the air mixer. If the air inlet is not protruding, sufficient mixing with the slurry is not achieved because the injected air is transported along the inner wall of the air mixer. In addition, in order to prevent clogging of the inlet by the reverse flow of the slurry, it is preferable that the cap is mounted at the end of the inlet so that it can be opened only in the direction in which air is injected.
상기 공기 혼합기는 슬러리를 성형 셀에 최종적으로 주입하기 전에 위치하도록 설치를 하며, 공기 혼합기는 연속적으로 혼합을 할 수 있는 라인믹서 형태로 슬러리가 주입되는 이송관의 직경보다 1배 내지 10배 정도 크기의 관 형태 중심에 혼합을 할 수 있는 판이 부착된 축이 장착되어 모터를 이용하여 회전시킬 수 있도록 되어 있는 형태이다. The air mixer is installed so as to be positioned before the slurry is finally injected into the molding cell, and the air mixer is a line mixer capable of continuously mixing, which is 1 to 10 times larger than the diameter of the conveying tube into which the slurry is injected. At the center of the tube form, the shaft is equipped with a plate that can be mixed to be rotated using a motor.
이송관에 투입된 인조 대리석 슬러리는 공기 주입구로부터 투입되는 공기와 혼합되고, 이송관 내에 장착된 공기 혼합기를 통해 일정한 크기의 기포가 형성하도록 혼합된다. 이 때 기포의 크기가 일정한 분포를 갖도록 이송관에 장착된 혼합기의 회전 속도를 조절하여 성형 셀에 뿌린다. The artificial marble slurry introduced into the delivery pipe is mixed with air introduced from the air inlet, and mixed to form bubbles of a constant size through an air mixer mounted in the delivery pipe. At this time, by adjusting the rotational speed of the mixer mounted on the conveying tube so that the size of the bubble has a constant distribution and sprinkle on the forming cell.
주입된 공기를 혼합하는 혼합기의 회전속도는 30∼1000 rpm 더욱 바람직하기로는 30∼500 rpm이다. 혼합기의 회전속도가 1000 rpm이상이 되면, 형성되는 기포의 크기가 미세하게 되어 본 발명에서 달성하고자 하는 기포를 통한 패턴의 형성이 잘 나타나지 않으며, 혼합기의 회전속도가 30 rpm이하가 되면 형성된 기포의 크기 분포가 고르게 나타나지 않는다.The rotational speed of the mixer for mixing the injected air is 30 to 1000 rpm, more preferably 30 to 500 rpm. When the rotational speed of the mixer is more than 1000 rpm, the size of the bubbles to be formed becomes fine, the formation of the pattern through the bubbles to be achieved in the present invention does not appear well, and when the rotational speed of the mixer is less than 30 rpm Size distribution does not appear evenly.
상기 기포가 일정하게 형성된 슬러리는 성형 셀에 뿌린 후, 45∼120 ℃의 열풍 오븐에서 경화시킨다. The slurry in which the bubbles are formed is sprinkled in a molding cell and then cured in a hot air oven at 45 to 120 ° C.
경화가 왼료된 제품은 3차원의 기포패턴을 가지며, 도 2에 나타내었다. The cured product has a three-dimensional bubble pattern and is shown in FIG. 2.
본 발명은 하기의 실시예에 의하여 보다 더 잘 이해될 수 있으며, 하기의 실시예는 본 발명의 예시 목적을 위한 것이며 첨부된 특허청구범위에 의하여 한정되는 보호범위를 제한하고자 하는 것은 아니다. The invention can be better understood by the following examples, which are intended for the purpose of illustration of the invention and are not intended to limit the scope of protection defined by the appended claims.
실시예 1Example 1
베이스를 형성하기 위한 슬러리의 제조 : 30%의 폴리메틸 메타 아크릴레이트와 70%의 메틸메타 아크릴레이트의 혼합물로 이루어진 메틸메타 아크릴레이트 시럽(이하 수지 시럽으로 칭함) 20000 중량부, 수산화 알루미늄 30000 중량부, 트리메틸 프로판 트리 메타 아크릴레이트 600 중량부, 마블 칩 0 중량부 및 라우로일 퍼옥사이드 400 중량부를 혼합하여 제조하였다.Preparation of slurry to form base: 20000 parts by weight of methyl methacrylate syrup (hereinafter referred to as resin syrup) consisting of a mixture of 30% polymethyl methacrylate and 70% methylmethacrylate, and 30000 parts by weight of aluminum hydroxide It was prepared by mixing 600 parts by weight of trimethyl propane trimethacrylate, 0 parts by weight of marble chips and 400 parts by weight of lauroyl peroxide.
상기 제조된 슬러리를 100 kg/hr의 유속으로 이송관을 통하여 이송하며, 이송관 중간에서 3 ㎏의 공기를 주입하고, 이송관에 장착된 혼합기의 회전 속도를 120 rpm으로 하여 주입된 공기를 혼합한 후 공기가 혼합된 슬러리를 300×600×15 mm의 유리 성형 셀에 뿌린 후 45 ℃ 열풍오븐에 넣고, 단계적으로 오븐의 온도를 100 ℃까지 올려 경화를 시켰다. 경화가 완료된 후 상온까지 냉각 된 인조 대리석 제품에서 3 차원으로 기포가 형성된 표면과 단면을 잘라 기포의 분포와 크기를 측정하였다. 기포의 크기는 5×5 ㎠의 표면에서 중간 정도 크기의 기포를 선정하여 측정하였다. The prepared slurry is transferred through a transfer tube at a flow rate of 100 kg / hr, injecting 3 kg of air from the middle of the transfer tube, and mixing the injected air at a rotational speed of the mixer mounted on the transfer tube at 120 rpm. Then, the air-mixed slurry was sprayed into a glass molding cell of 300 × 600 × 15 mm, and then placed in a 45 ° C. hot air oven, and the oven temperature was gradually raised to 100 ° C. for curing. After hardening was completed, the surface and cross-section of air bubbles formed in three dimensions were cut from the artificial marble product cooled to room temperature to measure the distribution and size of the air bubbles. The bubble size was measured by selecting a medium bubble on the surface of 5 × 5 cm 2.
실시예 2 Example 2
이송관에 장착된 혼합기의 회전 속도를 1100 rpm으로 하는 것을 제외하고는 실시예 1과 동일하게 인조 대리석을 제조하였다.Artificial marble was prepared in the same manner as in Example 1 except that the rotation speed of the mixer mounted on the feed tube was 1100 rpm.
실시예 3 Example 3
이송관에 장착된 혼합기의 회전 속도를 10 rpm으로 하는 것을 제외하고는 실시예 1과 동일하게 인조 대리석을 제조하였다.Artificial marble was prepared in the same manner as in Example 1 except that the rotation speed of the mixer mounted on the feed tube was 10 rpm.
상기 실시예 및 비교실시예 1-2에서 제조된 인조대리석의 기포의 분포와 크기를 측정하여 표 1에 나타내었다. Table 1 shows the distribution and size of the bubbles of artificial marble prepared in Examples and Comparative Examples 1-2.
상기 표에서 나타난 바와 같이 혼합기의 회전속도가 1000 rpm이상이 되면, 3차원 기포패턴은 형성되나, 형성되는 기포의 크기가 미세하게 되는 문제점이 있었으며, 혼합기의 회전속도가 30 rpm이하인 경우에도 3차원 기포패턴은 형성되나 형성된 기포의 크기 분포가 고르게 나타나지 않았다. As shown in the table above, when the mixer's rotational speed is more than 1000 rpm, the three-dimensional bubble pattern is formed, but there is a problem that the size of the bubbles are formed fine, even when the mixer's rotational speed is less than 30 rpm The bubble pattern was formed, but the size distribution of the formed bubbles did not appear evenly.
본 발명은 인조 대리석의 슬러리를 제조하여 성형 셀에 공급하는 과정에서 공기를 주입하고 일정한 혼합속도로 혼합함으로써, 3차원 기포 패턴을 갖는 인조 대리석의 제조방법을 제공하는 효과를 갖는다.The present invention has the effect of providing a method for producing artificial marble having a three-dimensional bubble pattern by injecting air and mixing at a constant mixing rate in the process of preparing a slurry of artificial marble to supply to the forming cell.
본 발명의 단순한 변형 내지 변경은 이 분야의 통상의 지식을 가진 자에 의하여 용이하게 실시될 수 있으며, 이러한 변형이나 변경은 모두 본 발명의 영역에 포함되는 것으로 볼 수 있다.Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.
제1도는 본 발명에 따른 인조 대리석의 제조 공정을 개략적으로 나타낸 공정도이다. 1 is a process diagram schematically showing a manufacturing process of the artificial marble according to the present invention.
제2도는 본 발명에 따라 제조된 인조 대리석의 경화 후 제품의 단면과 일부분을 나타낸 것이다. 2 shows a cross section and a part of a product after curing of the artificial marble made according to the invention.
* 도면의 주요부호에 대한 간단한 설명 *Brief description of the main symbols in the drawing
1 : 슬러리 혼합기 2 : 슬러리 이송펌프 1: slurry mixer 2: slurry transfer pump
3 : 공기 주입구 4 : 공기 혼합기3 : Air inlet 4 : Air Mixer
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